passing objects in successive calls

HELLO, i tried to understand the context, but as an international student i want to make sure that i did it correctly , if someone can verify it with me i will appreciate it, the question is attached below.

1) You need to total up the value of the cars. Initialize the total to zero and each time you display a car add the value of that car to the total. Once you have displayed all the cars display the value of total.

I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...

Write a C program that should create a 10 element array of random integers (0 to 9). The program should total all of the numbers in the odd positions of the array and compare them with the total of the numbers in the even positions of the array and indicate ...